FDREG77_DOR
FDREG77_DOR, /* offset */
v = bus_space_read_1(tag, handle, FDREG77_DOR);
bus_space_write_1(tag, handle, FDREG77_DOR, FDC_250KBPS);
v = bus_space_read_1(tag, handle, FDREG77_DOR);
fdc->sc_reg_dor = FDREG77_DOR;
FDREG77_DOR, /* offset */
v = bus_space_read_1(tag, handle, FDREG77_DOR);
bus_space_write_1(tag, handle, FDREG77_DOR, FDC_250KBPS);
v = bus_space_read_1(tag, handle, FDREG77_DOR);
fdc->sc_reg_dor = FDREG77_DOR;